Ship&#39;s log.



Patented Apr. |7, 1900.

T. F. & T. s. WALKER.

SHIPS L06.

, (Application filed June 19, 1899.)

6 Sheets-Sheet l.

(No Model.)

rn: cams PETERS co.. vnmo-Lwwm wnsmnurou. n. c.

No. 647,776. Patented Apr. I7, |900. T. F. T. S. WALKER.

SHIPS LOG. l

(Application filed.' Junevl, 1899.)

6 Sheets-Sheet 2.

(No Mudql.)

.III-v.

TH: cams persas co, mc'raufuu.. wAsyvma'rou. n, c.

Patented Apr. |7, 1900.'

`T. r. 9' T. 9.` WALKER.l

SHIPS LUG.'

(xpnuminn maa zum 19, 1999.)

sheets-sneer 4.

(mi model.)

P'atenfed Apr. I7, |900.

T F. & T. s. WALKER.

SHIPS LUG.

(Application led Jana 19, 1899.)

6 Sheets-Sheet 5,

(No Model.)

No. V647,776.

(No Model.)

'rg F. s; T. s. WALKER.

SHIPS LOG.

(Applicgtion led. Jung 19, 1899.)

Patented Apr. I7, |900.

6 Sheets-Sheet 6;

1u: Nonms FErEns co. maremma. wwynron. u. c.

NiTnD STATES PATENT FFICE.

THOMAS FERDINAND WALKER AND THOMAS SYDNEY WALKER, OF BIRMINGHAM, ENGLAND.

SHIPS LOG.

SPECIFCATIONVforming part of Letters Patent o. 647,776, dated April 17, 1906, Y Y

' Application iled June 19,1899.

To all whom il? may concern:

Be it known that We, THOMAS- FERDINAND WALKER and THOMAS SYDNEY WALKER,snb jects of the Queen of Great Britain, residing at Birmingham, in the county of Warwick, England, have invented certain new and useful Improvements in Ships-Log Apparatus, (for which application has been made in Great Britain numbered 25,088 and dated November 28, 1898,) of which the following is a speciiication.

This invention relates to ships-log apparatus of the type in which therotator is in the Water and the register is on board, as upon the tarailf. In ships-log apparatus of this description for use on ships propelled at high rates of speed especially it is necessary to the continuous and correct operation of the mechanism that the greatly-increased frictional strains, causing increased Wear and tear, should be provided for and those effects neutralized. I

The invention to be herein described relates to the production of a novel ships-log apparatus by which the operation of the parts 0f such mechanisms is greatly facilitated and their wear and tear are reduced by the reduction of the friction and strains and by the facility afforded for the application of lubricants Without the disturbance of adjustments of c0- acting parts.

We have shown our invention embodied in a tarail-log apparatus, and the description hereinafter is particularly directed to such an embodiment, but any similar form of inboard register apparatus for a log will come within the scope of our invention. y

By the term register we mean that portion of the ships-log apparatus inward of the towing-line, and by the rotator we mean any usual implement towed in the Water and so constructed as to rotate in that element under the stress of the friction developed by towage. i

In our improved log apparatus the revolutions of the rotator are transmitted to the `registeri11g-wheelworkYby -means of a hook Serial No. 721,132. (No model.)

thus preventing wear. This hook and eye are respectively secured tothe first spindle of the register and to the inner end of the rotatorline, preferably the hook to the rotator-line and the eye to the registers first7 spindle. This spindle is connected with an antifrictionball-bearing device, to be hereinafter described, and at the point Where the spindle enters the casing of the register provision is made for the exclusion of sea-water, which in practice might dash over such parts and would if it obtained an entry corrode the steel parts. The first spindle of the register when its parts are in working relation engages the end of the main spindle of the register proper or Wheelwork for actuating the hands relatively to the graduated dial. These wheelwork and dial parts may be of usual construction in themselves; but our invention embodies a novel mode of mounting them upon the movement-plate as a base to which normally those parts are fixed in the sense of being inseparable in ordinary use, While the cylindrical covenwhich also carries the hinged dial-cover parts, is removable sufficiently to permit of ready access to and examination of the wheelworl; for such purposes as lubrication or cleaning.

The register mechanism in its inclosing case, With usual trunnions, is mounted in usual gimbals, so constructed as to enable .the instrument correctly to aline itself tothe line of pull of the rotator connection, and the gimbal parts are usually connected by us to a slide which has a lock and is itself fastened to the taft'rail or such convenient part of the vessel as may be selected by screws.

Figure l represents by external side view one form of shipslog-register apparatusentire (with the exception of the towing-line and rotator, which are not shown, as they do not come within the scope of the invention) with our improvement applied. Fig. 2 shows the same parts in section. Fig. 3 shows a front view of the register looking .toward the dial-face, and Fig. 4 shows a corresponding external vie W looking at the back of the register-casing.7 Fig. 5 shows an external side view of the front part of the register with the cover to the Whcelwork and dial removed to a short dist-ance. Figs. G and 7 show by IOO fro

, Y steink a4,"supporting gimbal 0,2, is socketed inV the. part d5, which part isslid into th'eflanged of pull.

2 A, n `ear/'fare 21, inclusive, show the antifriction-ball-bea'ring` device anddetails-"of its various parts,

Fig. 22 shows a side View; Fig. 23, a sectionalA View taken on the line' x of Fig. 22;l and Fig. 24, a detail, being a portion of thecasing, showing the slot for the screw n2,attached vto the. sl'idingcover, to reciprocate in without the cover becoming entirely separated. Fig.

. shows the first spindle-of the register sepa- 'I rately. F ig.j25 is a' View showing a modiiied construction of the sleeve inclosiug the spindle.

trunnions c, thev wheelwork, and its frame and cover, as well as the spindle b,

.c2` is: the gimbal, in the arms 'of which, at 0.3, the said trunnions are journaled. The

holder a6 and held therein by a 'lock-pin a7;

. The register-case swings vertically on the trunnions a and horizontally'on the vertical pin= or stem a4 to aline itself to the direction The hook Ac (see Figs. 6 and '-7) is formed with an open loop c?, into whichis entered and' fastened the inward end' of the rotator'f linie.

Y The sides of the hook c are su-bstan tially flat, andv 'the recess c is substantially square, while the parts (l2-and c3 are rectan gular` in cross-section. An incline at c4r is provided to facilitate engagement with .its fellow part .of the connection.` Theeyel ellis also made-of somewhat flat form at its sides and has a rectangular recess dto fit thehook Y 'ci The parts (Pof the sidesof larger open-` ing d3 are made curved to ease the engage.-

ment of the hook c.` This hook c is engaged with the eye d by entering its end c2 intov d? of the hook` c iits 4tightly in the cor-respond;-

ingly-shaped part d vof the eye d, and the two parts in operation practically work asif one piece, and sol'any frictional'wear is averted.

As more clearly seen in Fig. 2, the stem d5 of the eyed is made hollow andwitha screwthread tol engage the corresponding'screw thread b of the spindle h. For further security a screw b2is passed through a hole (Z4 in thel stemd, the said hole being threaded to fit thesaid screw which projects into thev serv-'in g to lock it, V Y

As shown in Fig. 2, the-spindle bis mounted annular recess b3 near the end of spindle b,

in. a sleeve e, which hasan annular flange e".

I i n ber in the-larger diameter b. Inv the drawings the barrel or chamber A contains the ball-bearings and carries the Vspindle m.

' necklaces.

plate f, Fig. .2. form is partially closed at its opposite end by vthe ring or coverk, said ring having a cir- Said sleeve is entered into the opening fi in the endv plate'f of the casing and. is held in place therein, but without contact'with the casing. or end plate, the said sleeve being tightly held between the disk hand the ,and soas to cover the annulus e'gis fastened thedome g by screws g' passing into plate f. Any water entering between the lip'g2 around the outer end ofthe sleeve e is intercepted by the projection e' andtrapped in the annular space within that dome and can trickle away through the smalloutlet provided therein at g3. VThe spindle b has a fork b4 formed by two curved side pieces, 'and hollow cham- The cleft between the parts of the fork engages end of Wis aprojecting pin whichserves by engagement in a. recess h" in adisk h,VV to be described, to couple the' spindleb andthe said 'disktogethen so yasto insure that they shall vrotatein unison.

u The antif-riction-bearings of the` spindle Z) `are constituted as fellows: The disk 7i, has an annular raceway 011 each face. On opposite each provided on the side next to h with a circular raceway, and between these races are held the respective sets of balls v2 1? in two These races, disks, andballs are heldin operative connection by a case (more clearly seen in Figs. l0 and 11") composed of circular shell lo, one end of. which is'partially p openy and formed' with a flange 7c', internally threaded to engage the corresponding screw- .thread'f-4 on the circularl ii'ange f3 lof the end This shell when in Working cular flange 7c4ltsee` Figs.- 12 and 13.)'formed on its outer edge with a' screwthread to engage a thread on the vinner surfacev ofthe shell at itsopen end 705. (See Fig."10f.) This ring k2 has a flanged opening cfx, internally threaded the same as the dan ge 7c and sothat when theV shell'and its cover are connected either end ofy the shell-.'casing/can bevreversed and screwed. ontothe thread of the iiange f3,

tvIo

Fig. 2, and thereby reverse the functions of the two sets. of ballsand races should any greater extent of wearl be developed on the one set than on .the other. The disks and balls can be ladjusted asi toV the amount of clearance between then]V by screwing the ring k2 in or-out of the shell hand when so adj usted the ring 7c? can be locked in that posi tion by the following device: Theouter edge ofthe ring k2 is milled to-facilitatehandling, and on the edge at 1013,(see Figs. l2 and 13)is formed an annular rabbetedvsurface, on which lies snugly a flat annular piece lr6,v provided with two inwardly.- projecting horns 767 k7,

Figs. 14 and 15, which'are adapted to lie in the recesses ks las, Fig. 1l, formed by theprojections 769 on-,the rim of the shell 7c. On the surfaces of the rings k2 and k6, which are approximately level, arev laid the small plates 7610' klo, and through an opening in each at la (see Fig. 13) is inserted a screw k12, which enters a tapped hole in the face of 4the ring k2, and when these screws k12 are tightened they cause the plates 7am to lock the rings k2 and k6 together, and the horns k7 lock them to the shell 7a.

Referring to Fig. 2, the ball-bearings can be removed bodily, with the spindle and other attached parts, from the barrel A of the casing by unscrewing the joint between the end plate f and that barrel.

In order to disconnect the spindle, the small screw b2 must be partially withdrawn, so as to allow the stem or socket d5 to be unscrewed from the outer end of the spindle b, which can then be freely Withdrawn longitudinally from its connection with the ball-bearings.

Although we have shown the spindle mounted in the sleeve e with its annulus e', the said sleeve and its annulus might form a solid part of the spindle itself, in which case we make the fork b4 at the inner end of the spindle a separate part, the portion h6 being internally threaded, so as to screw onto the inner end of the spindle, which is provided with a correspondingly-made screw. This part h6 beds firmly onto the disk h, which is thus ,held tight between the part b5 and the shoulder on the spindle whichcorresponds with the inner end of the sleeve e, as shown inFig. 2.` This modified construction is shown by Fig. 25X.

To remove this construction of spindle from the ball-bearings, itwould be merely necessary to unscrew the fork b4 and its socket o6 from the spindle b, and the latter can then be freely withdrawn.

The shell 7c, with its contained disks and balls, can be separated from the other parts after the removal of the spindle, as already described, and after its disconnection from the end plate f this set of parts as an entirety can be cleansed, regulated, and lubricated before beingre placed without disturbing the relations of the antifriction parts at all. The inner cylindrical case A3 contains the wheelwork C of the registering mechanism; also, the pointers C', Figs. 2 and 3, for `the dialplates. The cylindrical cover A' is adapted to slide or telescope onto and off of the cylindrical case, and at its front is provided with a bezel or ring A4, having a glazed pane A5, the bezel or ring being adapted to swing laterally on the pivot-pin a, Fig. 3, so that the inboard end of the telescopio cylindrical cover A' may be opened and closed to cover and uncover or expose and conceal the dials and pointers. The back or movement plate A2, secured to the cylindrical case A3, is attached by screws as to the cylindrical barrel A, and at its marginal or peripheral portion it is provided with a rabbeta9, with which engages the inwardly turned or projecting annular flange ctw of a locking-ring au. This ring is internally screw-threaded, as at am, to engage the external screw-thread o'n an outwardly-projecting bead or rim n.13, formed on the inner end of the telescopic cylindrical cover A', whereby the latter isirmly but detachably connected with the back or movement plate of the case containing the register mechanism. The telescopic cover can be conveniently and quickly unlocked and removed by simply unscrewing the lockingring; but obviously the pointer and dial mechanism are readily accessible, while the telescoping cover is locked in place by shifting or swinging the bezel A4 laterally on the pivotpin 1.14, thereby saving timeY and labor and avoiding danger of disarranging any part of the mechanism when it is merely desired to inspect the pointers and dials and theinstrument is being handled by an inexperienced person.

With regard to the necklaces of balls t" ft2 it is 2 which bears the strain of the pull of the line acting on the spindle b, while the inner necklace t, which acts as a means of regulating the amount of end shake, practically has no wear. The barrel or chamber A being practically liquid-tight, it may be filled with oil to above the level of the lowermost balls of the necklaces or thereabout.

The annular flange e is herein described and shown on the drawings as integral with the sleeve eor with the spindle b; but it can readily be understood that it may be made in separable form, its function being to prevent sea-water from creeping into the ball-bearing chamber.

In the arrangement of fastening shown by Figs. 22, 23, and 24 provision is made for retaining the connection'between the telescopic cylindrical cover A and the cylindrical case A3 of the wheelwork and restricting the distance it can be withdrawn when the springcatchesn u are removed from the holes n', one of such holes being seen in Fig. 22. This sliding of the cover is controlled by the tails of the screws n2, fixed in the cover A', traversing in the grooves n3 formed in the case A3 and shown in plan in Fig. 24. The springcatches n engaging the catch-holes nalso constitute locking devices for locking the telescoping cylindrical cover A in its closed position upon the cylindrical case A3, containing the registering Wheelwork. This means of controlling the movement of the cover A may be applied to the case shown in Fig. 1, if required.

The oiling of the balls t" t2 and their races can be effected through the holes o o at the top of the barrel A, and these holes are normally covered by a rotatable band o', having holes o2 o2, which are brought coincident with the holes o 0 to open a passage and are turned around for closing the same.

Although we have only shown one necklace of balls and corresponding races located between opposite faces of the disks 71, h h2, it is within the scope of our invention to employ IOO IlO

IZO

.i v v t leien-2e.

concentric rings of such balls, with correspondi'ngv concentric'races, and we wish' to include such aconstruction. n

We claiml 5 1. Ashipslog apparatus havingapivotallymounted barrel or chamber, a back plate *Asecuredlthereto and constructed with a marginal rabbet, a registering -wheelwork case connected to the back'plate, a cover telescoping xo on said case and provided at one end with an external screw-thread, and a vlockin, g;ring l constructed with a rlangeto engagev the rabbet ofl said back plate and an internal screwthread to engage the external screw-thread of' one end of the spindle for the attachment `ofj a rotator-line, an end plate closing the 'outer end of the barrel or chamber and constructed `with an inwardly-projecting screw-threaded flange, and a reversible ball-bearin g provided with an vin closing shell screw-threaded at` its opposite extremities for thedetachablejengagement of either extremity to the screwthreaded flange of said end tially as described. l 3. A ships-log apparatus having a pivotally-mounted barrel, acase containing the registering mechanism and attached to the barrel, an end plate detachably secured to the'outer end of the barrel and havinga projecting iiange, a ball-bearing providedwith a' dome secured to said end plate and through which the spindle extends, and an annulus outer end of the barrel, substantially as described. l

4. A ships-log apparatus havingv a-lpivotally-mounted barrel, a case containing regisrel, an end plate secured to the barrel, a spindle coupled with the registering mechanism Sandextendin g through said end plate, aserewf socket screwed on the outer end of the spindle, a dome attached to the end plate, and a ksleeve mounted on the spindle, tightly 'held by said lscrew-socket and having an annulus arrangedin the chamber of'said dome to intercept water entering the opening in the dome through which the spindle passes,.sub stantially as described.

5. A ships-log apparatus havinga registering mechanism, a rotary spindle coupled with the latter, the eye d'attached to the outer end of the spindle and constructed with the'opening d3, the rectangular recess d", andl the curved sides dand the rotator-line-attachregistering mechanism and carried bythe v plate, substan-v.

an inclosingshell secured to and'supportedV arranged in the chamber of the dome between the latter and the end plate which closes the tering mechanism and attached to the bar ing shell.

ing h o'ok c formedwith the loop c5, the rec-l tan'gular recessc, `the. body c3 and hook-point c2 both Lrectangular in cross-section and the incline c4 between said rectangular body and vhook-point, substantially as and for the purposes described.' 'V

16. .A ships-logapparatus having a register- 'ing mechanism, arotary spindle coupled with `the latter and formed with" an externallyscrew-threaded outer` end b' the eye dhaving the rectangular recess d', curved sides di and the internally-screw-threadedV socket d5 engagingthe threaded outer end ofthe spindle,

and the rotator-line-attaching hook 'c formed .with the loop c5, rectangular recess c', body c3 and'hook-p'ointcibothrectangular in crosssect-ion, and the incline c4 between said rec- ,fcangularl body and hook-point, lsubstantially asfand for the purposes described. 'n

`7. A ships-log apparatushavin g a register- `ing mechanism, a rotary spindle-*having a `vforked inner end and an eXternally-screwthreaded outer end, the eye d having the rectangular recess d and theint'ernally-screwthreaded socket d5 engaging. the screwthreaded outer end of the spindle, and the flattened hook'c having the body c3 and hookvpoint c2 rectangular in cross-section, substantially as and for the purposesdescribed.

V8. In a shipslog apparatus, a pivotallymounted barrel or chamber, .a case'containing registering mechanism, carried by the barrel or chamber, a spindle coupled with the registering mechanism, a device engaged with the end of the spindle for the attachment of the rotator-line, and an antifriction device for saidspindle consisting of two necklaces Ofvballs, va disk between them formed with raceways onits opposite sides, two disks each formed with a raceway on its inner face. and each separatelyengaging the outer side of one of thev said necklaces of balls, an inclosing shell'for said balls and disks, a fixing and adj usting ring engageable with said shell, and

a locking device between said locking-ring and inclosing shell.

9. In a vships-log apparatus, a pivotallymounted barrel-or chamber, a case containing registeringmechanism, carriedby thel barrel `or chamber, a spindle coupled with the consisting of two necklaces of balls with their correspon ding races, inclosed in an open-sided shell or cage having a fixing'or adjusting ring en gageable with said shell or cage, and a locking device for said adj ustin g-ring and inclos- 10. In a/ ships-log apparatus, a pivotallymounted barrel or chamber, a case containing' registering mechanism, carried by the barrel or chamber, a spindle coupled with the registering mechanism, a device engaged with the end of the spindle for the attachment of Vthe rotator-line,and an antifricton device consisting of two necklaces'of balls and their IOO IIO

corresponding raceways, inclosed in an open framework, shell 0r cage having an adjustingring k2, and a locking-ring 7c having horns 767 lying in recesses 768 in said shell or cage.

11. In a 'ships-log apparatus,a pivotallymounted barrel or chamber, a case containing registering mechanism, carried by the barrel or chamber, a disconnectible first spindle coupled with the registering mechanism, a device engaged with the end of said spindle for the attachment of the rotator-line, and an-antifriction device between said first spindle and said inclosing barrel, comprising two necklaces of balls, a disk between them formed with raceways on its opposite sides, two disks each formed with a raceway on its inner face engaging the outer sides of each of said necklaces of balls and inclosing shell for these balls and disks, a fixing and adjusting ring engageable with said shell, and a locking devicebetween saidadjusting-ring and Ainclosing shell.

l2. A sliips-log apparatus having av pivotally-mounted barrel or chamber, aback plate secured thereto, a registering-wheelwork case connected to said back plate, said case having side openings for examination of and access to the registering-wheelwork, an outer case telescoping upon said wheelWork-case, so that by sliding said outer case, access to the whcclwork-casc may be had through the` openings in the inner case, and a locking device for locking said outer case in closed position upon the inner or wheelwork case.

13. In a ships log, a register-wheelwork train, its supporting frame and casing, a removable cover to the dial and wheelwork, a lock means therefor, a disconnectible first spindle and inclosin g barrel, and antifrictionbearing between said iii-st spindle and such inclosing barrel, embodying two necklaces of balls, a disk between them formed with raceways on its opposite sides, a disk formed with a raceway on its inner face engaging the outer sides of each of said necklaces of balls, an inclosing shell for these balls and disks, a lixing and adjustin g ring engageable with said shell, and a locking device between said adjusting-ring and inclosing shell, reversible means of connection between such shell and the casing thereof, and means for'trapping and removing spray-water, substantially as set forth.

In testimony whereof We have hereunto s'et our hands in presence of two subscribing wit- 5 5 nesses.

THOMAS FERDINAND WALKER. Y THOMAS SYDNEY WALKER.

Witnesses:

ALBERr J. I-II'rcHINsoN, JOHN H. BILso'N. 

